services/datalab-utils/src/test/java/com/epam/datalab/util/mongo/IsoLocalDateTimeSerializerTest.java
/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package com.epam.datalab.util.mongo;

import com.fasterxml.jackson.databind.SerializerProvider;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.mockito.runners.MockitoJUnitRunner;

import java.io.IOException;
import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;

import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.verifyNoMoreInteractions;
import static org.mockito.Mockito.verifyZeroInteractions;

@RunWith(MockitoJUnitRunner.class)
public class IsoLocalDateTimeSerializerTest {

    @Test
    public void serialize() throws IOException {
        com.fasterxml.jackson.core.JsonGenerator jsonGenerator = mock(com.fasterxml.jackson.core.JsonGenerator.class);
        SerializerProvider serializerProvider = mock(SerializerProvider.class);

        LocalDateTime localDateTime = LocalDateTime.now();

        new IsoLocalDateTimeSerializer().serialize(localDateTime, jsonGenerator, serializerProvider);

        verify(jsonGenerator).writeStartObject();
        verify(jsonGenerator).writeFieldName("$date");
        verify(jsonGenerator).writeString(localDateTime.format(DateTimeFormatter.ISO_DATE_TIME));
        verify(jsonGenerator).writeEndObject();
        verifyNoMoreInteractions(jsonGenerator);
        verifyZeroInteractions(serializerProvider);
    }


}